Water-heater.



PATBNTEii MA-Y 19, 1908. G. w. MORRIS. WATER HEATER.

APPLICATION FILED JUNE 17, 1907.

GEORGE W. MORRIS, OF RACINE, WISCONSIN.

WATER-HEATER.

Specification of Letters Patent.

Patented May 19, 1908.

Application filed June 17 1907. Serial No. 379,438.

To all whom it may concern:

Be. it known that I, Gnonun W. Monnis, a subject of the King of Great Britain, residing at Racine, in the county of Racine and State of "Visconsin, have invented certain new and useful Improvements in I'Vater-Ileaters, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to devices for heating water, and is designed particularly for use in heating teed-water for boilers.

I t relates to water-heaters oi the kind shown in Letters Patent No. (321,693, dated March-21, 1895), granted upon my application, and is an improvement upon the construction shown in said patent. In said patented device water is forced into a shell or casing and through a series of tubes suitably held therein, through which tubes pipes project centrally leaving in'each tube only a nar row space between the tubes and their in closed pipes for the passage or water, and into such shell or casing steam is injected around the water tubes to heat the water passing through such tubes proper provision being made. of course, tor the discharge of the steam and the heated water.

In my present invention I employ the same idea of tubes through which project pipes for the purpose of forming within each tube a narrow passagjge for the water between each tube and its inclosing pipe, but I pro\ ide an improved construction wherebwthe water is brought to a higher temperature, all as illustrated in the accompanying drawing and as hereii'iatter specifically described.

That which I believe to be new will be. pointed out in the claims.

In the h'awing Figure 1 is a longitudinal central section through my improved heater: Fig. 2 is a cross-section taken at line 2-'2 of Fig. 1; Fig. 3 is a cross-section taken at line 3 3 of Fig. 1: Fig. 4 is a crosssection taken at line 4-I of Fig. 1 1 Fig. 5 a detail, showing one end of one of the pipes through which the water is passed; and Fig. 6 is an end elevation of the pipe shown in Fig. 5.

Referring to the several figures oi the drawings, in which corresponding parts are indicated by like reference numerals.-4() indicates a shell or casing of the shape shown in cross-section in Figs. 2. 3 and 4, or of any other desired shape.

11 and 12 indicate tube-sheets extending across the shell or casing,-the tube-sheets being located near 0 posite ends of the shell or casing, and each ocated a short distance from the end, in order that when the endplates 13 and 14, respectively, are applied and secured to the shell orcasin chambers will be left at each end of the shell or casing. At the steam-discharge end of the device there is thus left a single chamber which is designated by the numeral 15, while at the opposite end, or that end near which the steam is admitted, there are formed two chambers designated by the numerals 16 and 17,the space at this end being formed into these two chambers 16 and 17 by a division wall 18 that extends out from the tube-sheet 12, and against which division wall the cndplate 14 bears.

.19 indicates a series of tubesfour in number in the construction shown-extending from the tube-sheets 11 and 12, through which tube-sheets they pass and beingsuitably secured in place to such tube-shects. Each of these tubes opens into the chamber .15, and half of them open at the other end into the chamber 16, while the remainder at that end open into the chamber 17.

21) indicates 'iipespassingcentrallythrough the tubes 19, each pipe beinp oi" suiliciently less diameter than its inclosing tube to leave a narrow passage all around the pipe between it and its inclosing tube. Each of these pipes is screw-threaded at one end, and at that end rojects sulliciently beyond the end of its lIltHOslllg tube 19 to enable it to be screw-threaded into the end-plate 13 and into bosses 21 formed on the outer face of such plate 13. The opposite end of each pipe has a series oi radial wings 22 formed on its exterior which fit against the inner wall of the int-losing tube in which the pipe located so as to insure the pipe being held centrally in its tube. At this winged end each pipe terminates at about or just slightly beyond the end of its inclosing, tube. The endplates 13 and 14 can be removed, of course, at any time to permit access to the interior for the purpose of placing or removing the pipes.

23 indicates a pipe screw-tln'eaded into a suitable 0 )ening in the endplate 14, or otherwise suita bly secured therein, through which pipe cold water is adapted to be forced.

'24 indicates a pipe similar to pipe 23 also passing through the end-plate 14 but at the op osit'e side of the (ivision wall 18. Througi this ipe. 24 the heated water is adapted to be ischarged from the device.

2-5 indicates an opening in the wall of the shell or casing, through which steam is admitted to till the interior of such shell or casing, and 26 indicates a discharge opening for 2 such steamthc openings 25 and 26 being, asshown, near opposite ends ot the device.

in operation, with the parts assembled as shown, the water to be heated is forced through i the pipe 23 into the chamber 16 and will pass up into the pipes 20 that communicate with such chamber 16, but, of course, cannot escape at the other end of such pipeas such pipe is closed by being screw-threaded into the end-plate 13. Water will also pass into the tubes that communicate with this chamber 16 and from thence pass into the chamber 15 and be forced down through the oppositely-located tubes that communicate with the chamber 17,-such water passing into.

tion of their interior occupied by the p1 es 20, it is evident that all of the water tiat passes through the tubes is necessarily kept very close to the wall of the tubes and is therefore capable of being very quickly heated by the steam with which the interior of the shell or casing is filled, as fully pointed out in my said former patent. My present construction, however, is a very decided improvement over that shown in said patent in that the water is more highly heated than was formerly the case, inasmuch as it is forced from one end of the device to the other and then back again and is thus discharged from the same end of the device at which 1t enters. Furthermore, in my present device one end of each of the ipes is left open so that such pipes become filled with water, which water, after the device has been in use a short time, becomes very considerably heated and thus I aids in heating the flowing stream of water i passing between them and the inclosing f tubes.

That which 1 claim as my invention, and desire to secure by Letters Patent, is,-

v 1. in a water-heater, the combination with a shell or casing provided with a tubesheet near each end, of a plurality of tubes 1 secured in said tube-sheets, said shell or casing having a chamber at one end with which all of said tubes communic te and two chambers at the other end with each of which part of said tubes communicate, pipes in said tubes closed at the single-chamber end of the device and opening into the two chambers at the opposite end, pipes for admitting water to one of said two chambers and distharging it from the other, and openings for admitting and discharging steam to and from said shell or casing.

2. In a water-heater. the combination with a shell or casing provided with a tubesheet near each end. and plates attached to the ends of the shell or casing whereby chamhers are formed at each end of the shell or casing between said endpl ates and tubesheets, of a division )late dividing one of said chambers, a plurality of tubes secured in said tube-sheets and communicating with the chambers at each end, pipes in said tubes projecting through the single chamber at one end and secured to the adjacent end-plate ol' the shell or casing and communicating with the divided chamber at the opposite end, a pipe for admitting water to one side of said divided chamber, a pipe for "conducting water from the other side of said divided chamber, and openings for admitting and discharging steam to and from said shell or casing.

l l l GEORGE W. MORRlS. Witnesses:

C. R. CARPENTER, HARVEY FoRD. 

